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Table of Contents
Related Manuals for Clarion APX400
Summary of Contents for Clarion APX400
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Page 2: Table Of Contents
INTRODUCTION The Clarion APX400.4M is a full-featured four-channel amplifier. It comes with the following features: • Full frequency response with low distortion and exceptional signal to noise performance • Advanced circuit design features bridgeable and mixed mode operation for use in a variety of 4, 3 or 2 channel systems •... -
Page 3: Description
Included are external automotive type fuses that are easy to replace. INPUT CONNECTIONS AND AUDIO CONTROL The front panel of the APX400.4M contains connections for RCA Inputs and Audio Control as shown below. The Input Connections are gold-plated RCA Jacks and are labeled as FRONT Figure 1- 1. - Page 4 Stereo input allows full left and right stereo operation. Right (bridged) input allows single channel input for bridged operation. This is especially useful in high-powered systems when using the APX400.4M as a bridged 2 channel amplifier. L + R (sum mono) allows a stereo input to be...
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Page 5: Connections For Power And Speakers
Radio. Failure to do this will result in noise and improper operation. CONNECTIONS FOR POWER AND SPEAKERS The rear panel of the APX400.4M contains power and speaker connections as shown below. Figure 2- 1. Left Front Speaker Output 2. -
Page 6: Applications
The Clarion APX400.4M 4-channel marine amplifier can be used in a variety of system applications. We’ve enclosed some example systems to help plan your own installation. 4-Channel Full-Range Stereo System Figure 3 - In this application, the APX400.4M is used as a 4-channel amplifier to drive four full-range speakers in stereo. - Page 7 4-Channel Stereo System 2-Channels High-Pass, 2-Channels Low-Pass Figure 4 - In this 4-channel system, the APX400.4M drives a pair of stereo satellites for the front and a pair of stereo subwoofers for the rear. Note the filter settings.
- Page 8 2-Channel Stereo System with Low-Pass Bridged Mono Channel Figure 5 - The APX400.4M can also be used to drive a pair of stereo satellites for the front and a single mono subwoofer for the rear. Note the filter settings.
- Page 9 2-Channel High Power Systems (Satellite or Subwoofer) Figure 6 - The APX400.4M can be set up as a 2-channel high-power amplifier to drive a pair of satellites (or subwoofers).
- Page 10 Mixed-Mode System On Rear; Full-Range FREQ (hz) L (mH) NOTE: Chart values based on 4 ohm speakers. Figure 7 - The amplifier can be configured for a mixed-mode operation on either channels 1/2 or 3/4 amplifier sections. The table provides component values to create a 6dB per octave crossover at specified frequencies.
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Page 11: Installation
INSTALLATION This section lists Mounting and Wiring Precautions for installing the Clarion APX400.4M. Combined with the experience of a professional installer, these safeguards provide enough detail to successfully complete an installation. If you do not have the necessary skills, do not install the amplifier yourself. - Page 12 If you are planning a multi-amplifier system, you may need to add a second battery and possibly upgrade the alternator with a higher-output rated model. Consult your authorized Clarion dealer for recommendations. 9. To avoid noise problems, run the amplifier’s positive (+) power lead along one side of the vessel to the battery.
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Page 13: Setting The Gain
4. Slowly increase the Gain Control. Stop when you hear a slight distortion of audio. SETTING THE CROSSOVER The Clarion APX400.4M features fully adjustable front and rear crossovers. To set the crossovers, follow these steps. 1. Using the X-Over Mode Switch, select the desired mode - LP for Low Pass, HP for High Pass and OFF for Full Range. -
Page 14: Final System Checks
Problem Audio cycles on and off. Solution Thermal protection circuits are shutting amplifier off. Check location for adequate ventilation; consult an authorized Clarion Audio Dealer Problem Distorted audio. Solution Gain is not set properly, or damaged speaker cones. Review Setting Gain;... -
Page 15: Product Specs
Max. Power Output Cont. Power Output 2-Ohm Stereo Output Bridged Power Dimensions Current Consumption @ Max Power Output NOTES APX400.4M 20Hz ~ 20kHz >95db .05% all channels driven 250mV ~ 2.5V 500mV ~ 5V 380W (190 x 2) 200W (50W x4) @.08% THD 90 x 4 @ .8% THD... - Page 16 661 W. Redondo Beach Blvd. Gardena, CA 90247 1-800-GO-CLARION www.clarion-usa.com APX400.4M-10 Rev.2 (05/00)
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